SA-S-S-370+D

SSaattoohhService Manual

S370, S370D,D1300, D1300FD

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF SATOH OR IT’S SUCCESSORS. SATOH AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Serv

ice

Man

ual

MITSUBISHI TRACTOR

:;i\S370, S370D Dtaoo, D1300FD

: KEPAIR MANUAL.

MITSUBISHI AGRICULTURAL MACHINERY/CO., LTD.

INDEX ~\GENERAL DESCRIPTION

"-

ENGINE SYSTEM

CLUTCH SYSTEM

STEERING liNKAGE SYSTEM j

1 2 3 4 5 G 7 B 9

t ~

,. TRANSMISSION SYSTEM

. BRAKE SYSTEM

4-- J ..... .--"

. HYDRAULIC SYSTEM

. ELECTRICAL SYSTEM

OTHERS

CONTENTS

SPECI FICATIONS .............................................................. 1-1

GREASING DIAGRAM ............. , ... , ............................. , ., ... , ... 1-8

RECOMMENDED LUBRICANTS ................ , ........................ " ..... , 1-10

ANTIFREEZE ............................................................... 1-11

BOLTS AND TIGHTENING TORQUES ............................................ 1-12

LOCATIONS OF THE TRACTOR AND ENGINE SERIAL NUMBERS .................... 1-13·

GENERAL DESCRIPTION 14

Standard PTO speed ............................ 540 rpm 11843 engine rpm 1000 rpm 12086 engine rpm

Direction of rotation (standard) ................... Unclickwise viewed from tractor rear (option) ........... Clockwise viewed from tractor rear

Max. drawbar pull (2 wheel drive) .................... 772 Ib (350 kg) (4 wheel drive) ........ , .1213 Ib (550 kg)

Steering (2 wheel) Steering system ................................ Ackerman Jant Method Axle center ................................... Center pivot type King pin type ................................. Rumoin

Steering gear box ............................... Worm sector type

Tread adajustment .............................. With set in adverse Axle center swing angle .......................... 8

King pin angle ................................. 8

Chamber ..................................... 2.5 Caster ....................................... 3

Toe-in ....................................... 0.24 in. (6 mm) Steering angle (2-wheel) ......................... Inside 55°, outside 42.5°

(4-wheel) ........................ .440 _0° _2°

Gera ratio .......... , ........................ . 1/15

Steering wheel size ............................. 14.96 in. (380 mm)

Turning radius 2-wheel (with brake) .......................... 66.93 in. (1700mm)

(without brake) ....................... 78.74 in. (2000mm) 4-wheel (with brake) .......................... 78.74 in. (2000mm)

(without brake) ....................... 98.42 in. (2500mm)

Brake

Type ........................................ Mechanical internal expanding dry sealed brake

Brake pedal ................................... Foot brake separate Parking brake and operating ...................... Main brake used with hand Lining dimension .............................. .4.685 x 1.181 x 0.177 in.

(length x width x thickness) . . . . . . . . . . . . . . . . . (119 x 30 x 4.5 mm) Number of lining ............................. .4 Dram diameter ............................... .4.488 in. (114 mm) Position ...................................... Diff. pinion shaft

Front tire (2 wheel) Tire size and ply rating ......................... .400-9,2 ply Tire pattern ................................... Fam service rib Tire pressure .................................. 22.8Ib/in 2 (1.6 kg/cm 2 )

Outside diameter ............................... 17 .99 in. (457 mm) Tire width ................................... .4.49 in. (113 mm) Loaded radius ................................. 286.3 Ib (130 kg)

Type of valve .................................. TR-13 Rim ......................................... 3.00 x 10

Front tire (4 wheel)

Ti re size and ply rating .......................... 5-12, 2 ply

Tire pattern ................................... AG

CONTENTS

DISMOUNTING THE ENGINE ........................................... 2.1

Mounting the Engine ............................................ " .2.3

Dismounting the Engine on the 4-wheel Drive Model .................... 2.4

CROSS SECTION OF ENGINE . .......................................... 2.5

PERFORMANCE CURVE .............. . .......... . ... . ................. 2.7

SPECI FICATIONS .......................... . .......................... 2.9

PERIODIC INSPECTION .............................................. , 2.10

SPECIFICATIONS AND MAINTENANCE STANDARDS ........... , .......... 2.11

Engine General .......................... . ...................... 2.11

Lubrication System .............................................. 2.15

Fuel System ........................................ . .......... 2.16

Cooling System ................................................. 2-16

Electric System ................................................. 2-17

Table of Tightening torques . ...................................... 2-18

List of Sealants ................................................. 2-18

Special Tools ................................................... 2.18

DETERMINATION OF ENGINE OVERHAUL TIME ......................... 2c19

Measurement of Compression Pressure ............................... 2.19

I ncreased Lubricant Consumption ........................... . ....... 2.19

ENGINE CONSTRUCTION AND MAINTENANCE ........................... 2.20

Construction of Cylinder Head ..................................... 2.20

Cylinder Head Disassembly, Assembly and Adjustment .................. 2.21

Construction of Crankcase ........................................ 2.23

Crankcase Disassembly, Assembly and Adjustment ...................... 2.25

LUBRICATION SYSTEM CONSTRUCTION AND MAINTENANCE ............. -2.31

Construction of Lubrication System ..............•.................. 2.31

Disassembly, Assembly and Adjustment of Lubrication System ............ 2.32

CONSTRUCTION AND MAINTENANCE OF FUEL SYSTEM .................. 2.33

Construction of Fuel System ............. . ......................... 2-33

Fuel System Disassembly, Assembly and Adjustment .. . ........... . ..... 2.36

COOLING SYSTEM CONSTRUCTION AND MAINTENANCE .................. 2-38

Disassembly, Assembly and Adjustment of Cooling System ............... 2-38 ~{i; (".

CAUTIONS IN HANDLING ENGINE ..................................... 240

SAFETY PRECAUTIONS ............................................... 240

BEFORE PUTTING YOUR ENGINE IN OPERATION ........................ 2.40

PRE-STARTING PREPARATIONS ................................ , ...... 2-40

STARTING PROCEDURES .......... , ................. , ................ 2-41

Normal Starting ................................................. 2-42

Starting under Sub-zero Conditions .................................. 2-42

STOPPING PROCEDURES. ............................................. 2-43

REQUIREMENTS FOR PROPER OPERATION ............ , ......... , ..... , 2-43

Lubrication System .............................................. 2-43

Fuel System ., ................................................. 2-44

I ntake System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45

Cooling System ................................................. 2-45

Wiring Diagram ................................................. 2-46

PERIODIC CHECKUP AND ITS PROCEDURES ............................. 2-47

TROUBLESHOOTING ................. " ............................... 2-48

2-28 ENGINE SYSTEM

If the oil clearance is excessively great, replace the bearing. If the standard oil clearance is not obtain­

ed after bearing replacement, grind the crankshaft to an undersize and install the bearing of the same

undersize.

Measuring .ID of Connecting Rod Bearing

c. Use special tool bearing installer for replacing the main bearing.

1) To remove the main bearing, place the installer body on the guide ring as shown. To remove the main bearing from the bearing housing, push it all the way th ­rough from the front to the rear. To re­move the main bearing at the back of the crankcase remove the oil seal, then push from the back of the crankcase to the case interior.

BEARING INSTALLER

GUIDE RING BEARING HOUSING ,..----'----'------, (F RONT) OR

"...,~====r=;:r' CRANKCASE (REAR)

Removing Main Bearing

2) To press-fit the main bearing, assemble the installer body, guide ring and main bearing to be pressed in as shown and press in from the same direction as for removal.

STAMPED MARK

OIL PASSAGE \ ~--' _ _ -L-----,

MAIN BEARING

Press fitting of main Bearing

NOTE: ---------------------------

1. Install the main bearing by pressing so that the oil passage of the crankcase is aligned with that of the bearing. Set the main bearing so that the oit passage is aligned with the mark provided on the collar of the installer body

and press it into position aligning with the oil passage of the crankcase. Once set, do not

turn the tool or bearing. Press the main bear­ing so that its xxxxxx comes above the center of the crankshaft.

2, Before installing the bearing, apply engine oil over the bearing surface. Always use a press. Never strike with a hammer, etc.

Timing Gears

a. Check each gear teeth for dents, wear, dam­ages, etc. Replace defective gears.

Camshaft a. Measure the clearance between the camshaft

journal (front, rear) and the crankcase hole. If

the clearance is excessively great, replace the camshaft or crankcase.

b. If the cam face has a damage or wear of the cam projection exceeds the service limit, re­place the camshaft.

Oil pump Drive Gear a. If wear and damage on the oil pump drive gear

and ball bearing are excessive or there are ab­normal noises and binding, replace affected parts.

CONTENTS

GENERAL .............................................................. ·3-1

CONSTRUCTION ..... , .. , ., .. , ........ , ..... , ..... , ............ , .. , ...... ·3-1

Clutch Release Mechanism ., ........................................... 3-2

Clutch Cover ......................................................... 3-2

Tapering-Finger Diaphragm ............................................. 3-2

Clutch Disc ......................................................... 3-3

SAFETY SWITCH .......................................................... 3-3

OPERATION ............................................................. 3-3

REMOVING THE CLUTCH .................................................. 3-4

Removing the Release Bearing ........................................... 3-4

Disassembling the Clutch Pedal .......................................... 3-4

INSEPCTION, MAINTENANCE, AND LIMITS ................................... 3-5

ASSEMBLING AND ADJUSTING THE CLUTCH ....................... , ......... 3-6

Assembling the Clutch ................................................. 3-6

Assembling the Release Bearing .......................................... 3-7

Assembling the Clutch Shifter and Clutch Pedal ............................. 3-7

Adjusting the Clutch Pedal Free-play ..................................... 3-7

Pedal Free-play Adjustment ............................................ 3-8

Pedal Effective Stroke Adjustment ....................................... 3-8

Adjusting the Safety Starter Switch ., .................................... 3-8

MOUNTING THE ENGINE .................................................. 3-8

TROUBLESHOOTING ...... , ............................. , ................. 3-9

Clutch Slips While Engaged ...•......................................... 3-9

Shudder When Starting ........................................... " .... 3-9

Clutch Overheats .................................. : .................. 3-9

SPECI FICATIONS ......................................................... 3-9

CONTENTS

,I \

"

\

.~

2-WHEEL DRIVE ...................................................... 4-2

GENERAL ........................................................... 4-2

CONSTRUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3

DISASSEMBLING THE STEERING SYSTEM ...... , ......................... 4-3

Front Wheel Hub Disassembly. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . .4-3

King Pin Disassembl~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3

Front Axle Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-3

DISASSEMBLING THE STEERING GEAR BOX .............................. 4-4

Steering Gear Box Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-4

Throttle Lever Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-4

Disassembling the Steering Gear Box .................................. 4-5

INSPECTION ......................................................... 4-5

ASSEMBLY ......................................................... , 4-5

Assembling the Front Wheel Hub ................................... , 4-5

Assembling the Front Axle ......................................... 4-5

Assembling the King Pin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-6

Assembling the Steering Gear Box. 4-7

4-WHEEL DRIVE ...................................................... 4-8

GENERAL ........................................................... 4-8

CONSTRUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-9

Mid P.T.O ..................................................... " 4-9

Universal Joint. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-9

Front Differential .............................................. " 4-9

Knuckle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-9

DISASSEMBLING THE 4-WHEEL DRIVE STEERING SYSTEM ................. 4-10

Front Axle ................................................... ' .. 4-10

Removing the Universal Joint ....................................... 4-10

Removing the Knuckle Assembly .................................... 4-10

Removing the Axle Housing ........................................ 4-11

Disassembling the Knuckle Assembly ................................. 4-11

Disassembling the Final Gear Case .................................... 4-11

Disassembling the Axle Housing and Differential Gear Assembly. 4-12

Disassembling the Pinion Gear ....................................... 4-12

INSPECTION ......................................................... 4-12

ASSEMBLY .......................................................... 4-12

Assembling the Differential Gear .................................. , .. 4-12

Assembling the Knuckle Assembly ...•............................... 4-14

Assembling the Final Gear Case •..................................... 4-14

Installing the Universal Joint ........................................ 4-17

Steering Gear Box ................................................ 4-17

SPECIFICATIONS ......... , .. , .. , .. , .. , .. , .. , .. , .. , .............. , .... 4-18

DISAMMEMBLING THE STEERING SYSTEM

Front Wheel Hub Disassembly

1. Loosen the front wheel mounting bolt lock nuts, and lightly loosen the three front wheel mounting bolts.

2. Jack up the front axle, loosen the front wheel mounting bolts, and remove the front wheels.

3. Remove the front wheel hub cap, straighten the tab of the lock washer, and remove the sleeve nut.

STEERING LINKAGE SYSTEM 4·2

4. Remove the front wheel hub using the gear puller, and remove the oil seal.

5. Remove the ball bearing from the front wheel hub.

King Pin Disassembly

1. Remove the cotter pin locking the castle nut on each end of the tie rod, loosen the castle nut, and remove the tie rod.

2. Loosen the knuckle arm bolt, and remove the knuckle arm while taking care so that the king pin does not fall. Remove the drag link from the knuckle arm, as required.

3. By tapping the top end of the king pin, pull out the king pin.

4. Remove the right hand castle nut, and remove the king pin. For the right side king pin, remove the castle nut and the king pin.

Front Axle Removal

1. Pullout the cotter pin from the center pin nut, and remove the castle nut.

CONTENTS

GENERAL ...................................... , .................... 5-1

CONSTRUCTION ...................................................... 5-1

Power-Take-Off .................................................. 5-3

Final Drive Case ................................................. 5-4

DISASSEMBLING THE TRANSMISSION ................................... 5-4

Removing the Transmission Case. .................................... 5-4

DISASSEMBLING THE TRANSMISSION CASE .............................. 5-6

Disassembling the Drive Shaft ....................................... 5-6

Disassembling the Select Shaft ...................................... 5-6

Removing the Differential Gear ...................................... 5-6

Disassembling the Counter Shaft ..................................... 5-6

Disassembling the Reverse Shaft ..................................... 5-6

Disassembly of the P.T.O. Shaft .................................. " 5-6

Disassembly of the Differential Gear ~ ................................ 5-7

Disassembly of the Final Drive Case. .................................. 5-7

Disassembly of the Rear Wheel Shaft ................................. 5-7

ASSEMBLING THE TRANSMISSION CASE ................................. 5-8

The Transmission Case is Assembled in the Following Order ............... 5-8

Assembly of the Differential Gear .................................... 5-8

Measuring the Cone Center of the Counter Shaft ........................ 5-8

How to use the Special Tool ........................................ 5-9

Counter Shaft Gear Clearance. ....................................... 5-9

Assembly ofthe P.T.O. Shaft ....................................... 5-10

Assembling the Counter Shaft ................... , ........ , .. , ...... 5-11

Adjustment of the P.T.O. Gear ..........................•.......... 5-11

Assembly of the Reverse Shaft ..................................... 5-11

Assembly of the Select Shaft ....................................... 5-12

Assembly of the Drive Shaft ....................................... 5-12

Assembly of the Differential Gear Unit ............................... 5-13

Final reduction ................................................. ~-14 ,

Disassembly of the Speed Shiftel:. .................. " ................ 5-15

Assembly of the Speed Shifter .. ~ ................................... 5-15

CONTENTS

GENERAL ........................................ , .............. , ... 6-1

CONSTRUCTION ...................................................... 6-1

DISASSEMBLING THE BRAKE .......................................... 6-2

Disassembling the Brake Pedal. ...................................... 6-2

INSPECTION ............ , ................................... , ........ 6-3

ASSEMBLY .......................................................... 6-3

Brake Drum and Brake Cover ....................................... 6-3

Brake Pedal ..................................................... 6-3

ADJUSTMENT ........................................................ 6-4

INSPECTION, MAINTENANCE AND LIMIT OF MODIFICATION ............ , .. 6-4

TROUBLESHOOTING .................................................. 6-5

SPECiFiCATIONS ..... , .. , .. , ................. , .. , .. , .. , .............. 6-5

CONTENTS

GENERAL ............................... , ... , ....................... 7-1

CONSTRUCTION .. , ., ...... , ........ , ......... , ........ , ., .. , .. , .. , ... 7-1

OPERATION ........................................................ , 7-2

Neutral Position . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-2

Lift Position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-3

Down Position ................................................. " 7-4

HYDRAULIC EXTERNAL SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-5

When the Tractor's Control Valve is Used. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-5

When the External Hydraulic Adapter is Used. . . . . . . . . . . . . . . . . . . . . . . . . .. 7-5

DISASSEMBLING THE HYDRAULIC SYSTEM ........... , . . . . . . . . . . . . . . . . .. 7.fj

Disassembling the Hydraulic Case ................................... , 7.fj

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-8

DISASSEMBLING THE CONTROL VALVE ....... , ................. , ..... ,. 7-8

I mportant Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-8

ASSEMBLING THE CONTROL VALVE ... , ...... , ., .. , ...... , .. , ., .. , ..... 7-8

ASSEMBLING THE HYDRAULIC CASE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-9

OIL PUMP ... , .. , ................................................... , .7-12

Oil Pump Construction ...... , ..................................... 7-12

Removing the Oil Pump ........................................... 7-12

Oil Pump Disassembly ............................................. 7-12

Checking During Disassembly ....................................... 7-13

Oil Pump Assembly Order .... , ., .......... , .. , .. , ........ , ..... , ... 7-14

Installing the Oil Pump ............................................ 7-14

Test ......... , ..... , ................. , ......................... 7-14

TROUBLESHOOTING GUIDE .... , ................. , .................... , 7-16

I mplement will not Lift at all when Control lever is placed in Lift .......... , 7-16

Implement is not Raised Quickly ................................... , 7-16

Implement Lowers During Neutral .................................. , 7-16

Implement will not Lower when Control Lever is placed in Down ........... 7-16

Oil Temperature is Excessively high .................................. 7-16

Abnormal Noise . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-17

SPECiFiCATIONS ..................................................... 7-17

CONTENTS

GENERAL ......................................................... " 8-1

DATA AND SPECiFiCATIONS ........................................... 8-1

ELECTRICAL WIRING DIAGRAM ......... , .............. , . . . . .. . . . . . . . .. 8-2

BATTERY .......................................................... " 8-3

Dry Charge. ................................................... " 8-3

Initial Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-3

Auxiliary Charging ............................................. " 8-4

Handling and Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-4

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-5

Data and Specifications of Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-5

SAFETY STARTER SWITCH. . . . . . . . . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . . . . . .. 8-6

Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-6

STARTING MOTOR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-6

ALTERNATOR ...................................................... , 8-7

REGULATOR ................................................. , . . . . . .. 8-8

ELECTRIC SYSTEM DISASSEMBLY, ASSEMBLY AND ADJUSTMENT. . . . . . . . .. 8-8

Disassembly ................................................... " 8-8

Assembly and Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-8

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-8

Alternator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-9

Regulator ...................................................... 8-10

Glow Plug and Glow Lamp ......................................... 8-10

CONTENTS

GENERAL ............................................................... 9-1

CONSTRUCTION .......................................................... 9-1

DISASSEMBLY OF THE ROTARY TILLER ......... , ................. , .. , ...... 9-2

INSPECTION ............................................................. 9-3

ASSEMBLY OF THE ROTARY TI LLER ........................................ 9-3

Assembly of the Gear Box .............................................. 9-3

Backlash of Bevel Gear ................................................ 9-5

SPECI FICATIONS ......................................................... 9-6

REAR P.T.O. ADAPTOR .................................................... 9-7

General and Construction .............................................. 9-7

Disassembly of the Rear P.T.O. Adapter ................................... 9-7

Specifications ....................................................... 9-7

FRONT P.T.O. KIT ......................................................... 9-8

General and Construction .............................................. 9-8

Disassembly of the Front P.T .0 .......................................... 9-8

Assembly of the Front P.T.O ............................................ 9-8